The correct answer is D.
Andrew Young is an American politician and activist.
On the domestic front, he was actively participating in the Civil Rights Movement and was a friend of Martin Luther King Jr. He was serving as a Congressman from Georgia and was also the Mayor of Atlanta.
Andrew Young played a very important role in international politics as U.S. Ambassador to the united Nations from 1977 to 1979.
He was the first African American to hold this position. As the Ambassador, he represented the USA on the U.N. Security Council and during the meeting of the General Assembly. The United Nations position involved dealing with international issues regarding all the member states.